I just picked up a clamshell ibook SE off of my local craig's list a few days ago. I got a really good deal on it but the only draw back is that the battery is dead. I setting this up for basic internet/adress book/calendar for a relative but I would like to get a new battery before I give it to them.

I've looked around online and have seen quite a range for replacement batteries. Anywhere from $50-$150 depending on if it's an Apple battery or third party made. I'm wondering if anyone has any advice on finding one for a good price. I would prefer new but it would most likely have to be third party units. I haven't worked with these models before so I'm unsure of the durability of third party makers. Any advice would be appreciated. Thanks.